X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fata%2Fpata_icside.c;h=b663b7ffae4bf4f9a0298910443e10a65e95f7e4;hb=13a28c15dd08f321cfa82cbb37024dc1bb825bbe;hp=f97068be2d7971e915802126c52fff68f8618109;hpb=dde2020754aeb14e17052d61784dcb37f252aac2;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c index f97068b..b663b7f 100644 --- a/drivers/ata/pata_icside.c +++ b/drivers/ata/pata_icside.c @@ -45,8 +45,6 @@ static const struct portinfo pata_icside_portinfo_v6_2 = { .stepping = 6, }; -#define PATA_ICSIDE_MAX_SG 128 - struct pata_icside_state { void __iomem *irq_port; void __iomem *ioc_base; @@ -57,7 +55,6 @@ struct pata_icside_state { u8 disabled; unsigned int speed[ATA_MAX_DEVICES]; } port[2]; - struct scatterlist sg[PATA_ICSIDE_MAX_SG]; }; struct pata_icside_info { @@ -222,9 +219,7 @@ static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; struct pata_icside_state *state = ap->host->private_data; - struct scatterlist *sg, *rsg = state->sg; unsigned int write = qc->tf.flags & ATA_TFLAG_WRITE; - unsigned int si; /* * We are simplex; BUG if we try to fiddle with DMA @@ -233,24 +228,16 @@ static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc) BUG_ON(dma_channel_active(state->dma)); /* - * Copy ATAs scattered sg list into a contiguous array of sg - */ - for_each_sg(qc->sg, sg, qc->n_elem, si) { - memcpy(rsg, sg, sizeof(*sg)); - rsg++; - } - - /* * Route the DMA signals to the correct interface */ writeb(state->port[ap->port_no].port_sel, state->ioc_base); set_dma_speed(state->dma, state->port[ap->port_no].speed[qc->dev->devno]); - set_dma_sg(state->dma, state->sg, rsg - state->sg); + set_dma_sg(state->dma, qc->sg, qc->n_elem); set_dma_mode(state->dma, write ? DMA_MODE_WRITE : DMA_MODE_READ); /* issue r/w command */ - ap->ops->exec_command(ap, &qc->tf); + ap->ops->sff_exec_command(ap, &qc->tf); } static void pata_icside_bmdma_start(struct ata_queued_cmd *qc) @@ -270,7 +257,7 @@ static void pata_icside_bmdma_stop(struct ata_queued_cmd *qc) disable_dma(state->dma); /* see ata_bmdma_stop */ - ata_altstatus(ap); + ata_sff_dma_pause(ap); } static u8 pata_icside_bmdma_status(struct ata_port *ap) @@ -297,7 +284,7 @@ static int icside_dma_init(struct pata_icside_info *info) if (ec->dma != NO_DMA && !request_dma(ec->dma, DRV_NAME)) { state->dma = ec->dma; - info->mwdma_mask = 0x07; /* MW0..2 */ + info->mwdma_mask = ATA_MWDMA2; } return 0; @@ -305,35 +292,18 @@ static int icside_dma_init(struct pata_icside_info *info) static struct scsi_host_template pata_icside_sht = { - .module = THIS_MODULE, - .name = DRV_NAME, - .ioctl = ata_scsi_ioctl, - .queuecommand = ata_scsi_queuecmd, - .can_queue = ATA_DEF_QUEUE, - .this_id = ATA_SHT_THIS_ID, - .sg_tablesize = PATA_ICSIDE_MAX_SG, - .cmd_per_lun = ATA_SHT_CMD_PER_LUN, - .emulated = ATA_SHT_EMULATED, - .use_clustering = ATA_SHT_USE_CLUSTERING, - .proc_name = DRV_NAME, - .dma_boundary = ~0, /* no dma boundaries */ - .slave_configure = ata_scsi_slave_config, - .slave_destroy = ata_scsi_slave_destroy, - .bios_param = ata_std_bios_param, + ATA_BASE_SHT(DRV_NAME), + .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS, + .dma_boundary = IOMD_DMA_BOUNDARY, }; -/* wish this was exported from libata-core */ -static void ata_dummy_noret(struct ata_port *port) -{ -} - static void pata_icside_postreset(struct ata_link *link, unsigned int *classes) { struct ata_port *ap = link->ap; struct pata_icside_state *state = ap->host->private_data; if (classes[0] != ATA_DEV_NONE || classes[1] != ATA_DEV_NONE) - return ata_std_postreset(link, classes); + return ata_sff_postreset(link, classes); state->port[ap->port_no].disabled = 1; @@ -349,42 +319,20 @@ static void pata_icside_postreset(struct ata_link *link, unsigned int *classes) } } -static void pata_icside_error_handler(struct ata_port *ap) -{ - ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset, NULL, - pata_icside_postreset); -} - static struct ata_port_operations pata_icside_port_ops = { - .set_dmamode = pata_icside_set_dmamode, - - .tf_load = ata_tf_load, - .tf_read = ata_tf_read, - .exec_command = ata_exec_command, - .check_status = ata_check_status, - .dev_select = ata_std_dev_select, - - .cable_detect = ata_cable_40wire, - - .bmdma_setup = pata_icside_bmdma_setup, - .bmdma_start = pata_icside_bmdma_start, - - .data_xfer = ata_data_xfer_noirq, - + .inherits = &ata_sff_port_ops, /* no need to build any PRD tables for DMA */ .qc_prep = ata_noop_qc_prep, - .qc_issue = ata_qc_issue_prot, - - .freeze = ata_bmdma_freeze, - .thaw = ata_bmdma_thaw, - .error_handler = pata_icside_error_handler, - .post_internal_cmd = pata_icside_bmdma_stop, - - .irq_clear = ata_dummy_noret, - .irq_on = ata_irq_on, - + .sff_data_xfer = ata_sff_data_xfer_noirq, + .bmdma_setup = pata_icside_bmdma_setup, + .bmdma_start = pata_icside_bmdma_start, .bmdma_stop = pata_icside_bmdma_stop, .bmdma_status = pata_icside_bmdma_status, + + .cable_detect = ata_cable_40wire, + .set_dmamode = pata_icside_set_dmamode, + .postreset = pata_icside_postreset, + .post_internal_cmd = pata_icside_bmdma_stop, }; static void __devinit @@ -512,7 +460,7 @@ static int __devinit pata_icside_add_ports(struct pata_icside_info *info) for (i = 0; i < info->nr_ports; i++) { struct ata_port *ap = host->ports[i]; - ap->pio_mask = 0x1f; + ap->pio_mask = ATA_PIO4; ap->mwdma_mask = info->mwdma_mask; ap->flags |= ATA_FLAG_SLAVE_POSS; ap->ops = &pata_icside_port_ops; @@ -520,7 +468,7 @@ static int __devinit pata_icside_add_ports(struct pata_icside_info *info) pata_icside_setup_ioaddr(ap, info->base, info, info->port[i]); } - return ata_host_activate(host, ec->irq, ata_interrupt, 0, + return ata_host_activate(host, ec->irq, ata_sff_interrupt, 0, &pata_icside_sht); }